https://digital.katalog.queersearch.org/s/katalog/item/45546 and https://digital.katalog.queersearch.org/s/katalog/item/42396, “Hoffest Mehringdamm 61”, 2004, QueerSearch, accessed 17. März 2025, https://digital.katalog.queersearch.org/s/katalog/item/30733